<template>
  <!-- 注册页面的整体盒子 -->
  <div class="reg-container">
    <!-- 注册的盒子 -->
    <div class="reg-box">
      <!-- 标题的盒子 -->
      <div class="title-box"></div>
      <!-- 注册的表单区域 -->
      <!-- elementUI 表单组件 -->
      <el-form ref="regform" :rules="regformRules" :model="regform">
        <el-form-item prop='username'>
          <el-input
            v-model="regform.username"
            placeholder="请输入您的用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop='password'>
          <el-input
            v-model="regform.password"
            placeholder="请输入您的密码"
          ></el-input>
        </el-form-item>
        <el-form-item prop='repassword'>
          <el-input
            v-model="regform.repassword"
            placeholder="请再次确认密码"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button @click="newUser" class="btn" type="primary">注册</el-button>
        </el-form-item>
      </el-form>
      <!-- 点击借助路由跳转至登录界面 -->
       <el-link @click="$router.push('/login')" type="primary">去登录</el-link>
    </div>
  </div>
</template>

<script>
export default {
  name: 'Reg',
  data () {
    // 定义校验规则
    const samePwd = (rule, value, callback) => {
      if (value !== this.regform.password) {
        callback(new Error('两次密码不一致!'))
      } else {
        callback()
      }
    }
    return {
      // 表单数据
      regform: {
        // username: '',
        // password: '',
        // repassword: ''
      },
      // 表单校验规则
      regformRules: {
        username: [
          { required: true, message: '请输入您的用户名', trigger: 'blur' },
          { pattern: /^[a-zA-Z0-9]{1,10}$/, message: '用户名必须是1-10的字母数字', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入您的密码', trigger: 'blur' },
          { pattern: /^\S{6,15}$/, message: '密码必须是6-15的非空字符', trigger: 'blur' }
        ],
        repassword: [
          { required: true, message: '请再次确认密码', trigger: 'blur' },
          { pattern: /^\S{6,15}$/, message: '密码必须是6-15的非空字符', trigger: 'blur' },
          // 自定义校验规则---validator,校验规则函数在data中定义
          { validator: samePwd, trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 注册成为新用户   1.进行兜底验证    2.发送ajax成为新用户
    newUser () {
      //  1.进行兜底验证
      this.$refs.regform.validate(async valid => {
        if (!valid) return
        // 2.校验成功,发送ajax成为新用户
        const { data: res } = await this.$http.post('/api/reg', this.regform)
        // 2. 注册失败，提示用户
        if (res.code !== 0) return this.$message.error(res.message)
        // 3. 注册成功，提示用户
        this.$message.success(res.message)
        // 4. 跳转到登录页面
        this.$router.push('/login')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.reg-container {
  background: url('../../assets/images/login_bg.jpg') center;
  background-size: cover;
  height: 100%;

  .reg-box {
    width: 400px;
    height: 335px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    padding: 0 30px;

    .title-box {
      height: 60px;
      background: url('../../assets/images/login_title.png') center no-repeat;
    }
    .btn{
      width: 100%;
    }
    a{
      font-size: 14px !important;
      margin-bottom: 8px;
    }
  }
}
</style>
